Quick Summary — Compress BMP Tool
Last Updated: August 22, 2026Compress BMP is a free web utility to shrink uncompressed BMP (Bitmap) graphic file sizes. Adjust compression levels with an interactive visual slider or set a maximum target file size in KB or MB. Batch process multiple BMP files, preview real-time file size savings, and download processed files individually or in a ZIP archive.
Compress BMP
Lightning-Fast BMP Compressor — Unlimited, High-Quality BMP Compression
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Compression Level
%
Max Target Size:
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How to compress BMP?
Follow these simple steps to compress your BMP bitmap images using our online compressor:
- Start by choosing the BMP file on the best compress BMP tool.
- Preview all the BMP files on the BMP compressor.
- Next, use the slider to compress the BMP file size.
- Additionally, choose a custom size for compression as per your needs.
- Download the compressed BMP file to your desired size.
BMP Image Compression Technical Overview
Comparing BMP file storage characteristics with web-compressed image formats:
| Image Format | Structure | Default Compression | Typical File Size |
|---|---|---|---|
| BMP | Uncompressed Bitmap / RLE | None / RLE (Run-Length) | Large (1 MB - 10 MB+) |
| JPG | Lossy Compressed Pixels | JPEG DCT Quality | Small (50 KB - 500 KB) |
| PNG | Lossless Indexed Pixels | DEFLATE Zip Compression | Medium (100 KB - 1 MB) |
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Frequently Asked Questions (FAQ)
Yes! Operatetools Compress BMP is 100% free with unlimited batch processing.
BMP compression optimizes pixel encoding using Run-Length Encoding (RLE) and color palette reduction to reduce heavy bitmap file size while preserving image clarity.
Yes! Click the Download Zip button at the bottom to download all compressed BMP images in a single ZIP file.